public void GetModified_ReventRemovesEntityFromTheSavingList()
{
var entity = new FileEntity("test")
.SetAttribute(new Attribute("a", new IntValue(1), AttributeSource.Custom));
// add entity to the modified list
_entityManager.SetEntity(entity, true);
// move it to the saving list
var snapshot = _entityManager.GetModified();
Assert.AreEqual(1, snapshot.Count);
Assert.AreEqual(entity.Path, snapshot[0].Path);
var loaded = _entityManager.GetEntity("test");
Assert.AreEqual(entity, loaded);
// remove attribute "a"
entity.RemoveAttribute("a");
Assert.IsFalse(entity.Any());
// revert the entity to its initial state
snapshot[0].Revert();
Assert.IsTrue(entity.Any());
Assert.AreEqual(1, entity.GetValue <IntValue>("a").Value);
loaded = _entityManager.GetEntity("test");
Assert.IsNull(loaded);
}
public void StoreThumbnail_EntityWithoutThumbnailAttribute()
{
var entity = new FileEntity("test")
.SetAttribute(new Attribute("attr", new IntValue(1), AttributeSource.Custom))
.SetAttribute(new Attribute("thumbnail", new ImageValue(new byte[] { 0x21 }), AttributeSource.Metadata));
_storage.Store(entity);
_storage.ApplyChanges();
var result = _storage.Load("test");
Assert.IsNotNull(result);
Assert.AreEqual(1, result.GetValue <IntValue>("attr").Value);
Assert.AreEqual(1, result.GetValue <ImageValue>("thumbnail").Value.Length);
Assert.AreEqual(0x21, result.GetValue <ImageValue>("thumbnail").Value[0]);
entity = entity.RemoveAttribute("thumbnail");
_storage.StoreThumbnail(entity);
_storage.ApplyChanges();
result = _storage.Load("test");
Assert.IsNotNull(result);
Assert.AreEqual(1, result.GetValue <IntValue>("attr").Value);
Assert.AreEqual(1, result.GetValue <ImageValue>("thumbnail").Value.Length);
Assert.AreEqual(0x21, result.GetValue <ImageValue>("thumbnail").Value[0]);
}
public void Remove_NonExitentKey()
{
IEntity attrs = new FileEntity("test");
var newAttrs = attrs.RemoveAttribute("test");
Assert.AreEqual(newAttrs, attrs);
}
public void Remove_OneKey()
{
IEntity attrs = new FileEntity("test");
attrs = attrs.SetAttribute(new Attribute("test", new IntValue(42), AttributeSource.Custom));
Assert.IsNotNull(attrs.GetAttribute("test"));
attrs = attrs.RemoveAttribute("test");
Assert.IsNull(attrs.GetAttribute("test"));
}
public void GetModified_ReturnRemovesEntityFromTheSavingList()
{
var entity = new FileEntity("test")
.SetAttribute(new Attribute("a", new IntValue(1), AttributeSource.Custom));
// add entity to the modified list
_entityManager.SetEntity(entity, true);
// move it to the saving list
var snapshot = _entityManager.GetModified();
Assert.AreEqual(1, snapshot.Count);
Assert.AreEqual(entity.Path, snapshot[0].Path);
var loaded = _entityManager.GetEntity("test");
Assert.AreEqual(entity, loaded);
// remove attribute "a"
entity.RemoveAttribute("a");
Assert.IsFalse(entity.Any());
// return the entity to the modified list
snapshot[0].Return();
Assert.IsFalse(entity.Any());
// It returns the modified entity. This is ok, Return should not change the entity state
loaded = _entityManager.GetEntity("test");
Assert.AreEqual(entity, loaded);
// move it to the saving list again
snapshot = _entityManager.GetModified();
Assert.AreEqual(1, snapshot.Count);
Assert.AreEqual(entity.Path, snapshot[0].Path);
Assert.AreEqual(1, snapshot[0].GetValue <IntValue>("a").Value);
loaded = _entityManager.GetEntity("test");
Assert.AreEqual(entity, loaded);
}